Chiral symmetry breaking for large "Nf" and the properties of the "rho" meson near the conformal window
This paper investigates how the ground-state properties of the meson evolve as the number of light-quark flavors () approaches the conformal window, revealing that while chiral symmetry restoration and deconfinement occur at a critical flavor number, the meson's survival is governed by the divergence of the confinement length scale rather than mass crossing, resulting in a larger, rounder object with flattened form factors and an expanding charge radius.